JP2001095773A5 - - Google Patents

Download PDF

Info

Publication number
JP2001095773A5
JP2001095773A5 JP1999275286A JP27528699A JP2001095773A5 JP 2001095773 A5 JP2001095773 A5 JP 2001095773A5 JP 1999275286 A JP1999275286 A JP 1999275286A JP 27528699 A JP27528699 A JP 27528699A JP 2001095773 A5 JP2001095773 A5 JP 2001095773A5
Authority
JP
Japan
Prior art keywords
region
magnetic field
image
magnetic resonance
interest
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1999275286A
Other languages
Japanese (ja)
Other versions
JP4416221B2 (en
JP2001095773A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP27528699A priority Critical patent/JP4416221B2/en
Priority claimed from JP27528699A external-priority patent/JP4416221B2/en
Priority to PCT/JP2000/006711 priority patent/WO2001022879A1/en
Publication of JP2001095773A publication Critical patent/JP2001095773A/en
Publication of JP2001095773A5 publication Critical patent/JP2001095773A5/ja
Application granted granted Critical
Publication of JP4416221B2 publication Critical patent/JP4416221B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【特許請求の範囲】
【請求項１】
被検体が置かれる空間に静磁場、傾斜磁場および高周波磁場の各磁場を発生する磁場発生手段と、
前記被検体の発生する磁気共鳴信号を検出する検出手段と、検出した磁気共鳴信号を用いて画像再構成する画像再構成手段と、再構成された画像を表示する表示手段と、前記各手段を制御する制御手段とを備えた磁気共鳴画像診断装置において、
前記制御手段は、前記被検体の所定領域内に所望の関心領域を設定する手段と、設定された関心領域を選択的に励起する高周波磁場の変調波形をリアルタイムで算出する手段とを備え、前記変調波形によって変調された高周波磁場を２ないし３軸方向の振動傾斜磁場と同時に印加し、前記被検体の所定の領域についてスペクトル情報を含む信号を取得する制御を行うことを特撒とする磁気共鳴画像診断装置。
【請求項２】
前記関心領域設定手段は、
所望のスライスについて撮影した断層像をスカウト画像として前記表示手段に表示し、表示されたスカウト画像上で前記関心領域を対話的に設定するための入力を受け付けることを特徴とする請求項１記載の磁気共鳴画像診断装置。
【請求項３】
前記制御手段は、前記関心領域を含む最小の矩形領域を設定し、この矩形領域に応じて画像マトリクスサイズを決定することを特徴とする請求項１または２記載の磁気共鳴画像診断装置。
[Claims]
[Claim 1]
A magnetic field generating means that generates a static magnetic field, a gradient magnetic field, and a high-frequency magnetic field in the space where the subject is placed,
A detection means for detecting the magnetic resonance signal generated by the subject, an image reconstruction means for reconstructing an image using the detected magnetic resonance signal, a display means for displaying the reconstructed image, and the respective means. In a magnetic resonance imaging apparatus provided with a control means for controlling,
The control means includes means for setting a desired region of interest within a predetermined region of the subject, and means for calculating a modulation waveform of a high-frequency magnetic field that selectively excites the set region of interest in real time. Magnetic resonance is characterized in that a high-frequency magnetic field modulated by a modulated waveform is applied at the same time as a vibration gradient magnetic field in two or three axial directions to control acquisition of a signal including spectral information in a predetermined region of the subject. Diagnostic imaging device.
2.
The region of interest setting means,
The first aspect of claim 1, wherein a tomographic image taken of a desired slice is displayed as a scout image on the display means, and an input for interactively setting the region of interest is received on the displayed scout image. Magnetic resonance imaging device.
3.
The magnetic resonance imaging apparatus according to claim 1 or 2, wherein the control means sets a minimum rectangular region including the region of interest, and determines the image matrix size according to the rectangular region.

本発明のMRI装置において、ROIを設定する手段は、所望のスライスについて撮影した断層像をスカウト画像として表示手段に表示し、 表示されたスカウト画像上でROIを対話的に設定するための入力を受け付ける機能を有する。 In the MRI apparatus of the present invention, the means for setting the ROI displays a tomographic image taken for a desired slice on the display means as a scout image, and inputs an input for interactively setting the ROI on the displayed scout image. It has a function to accept.

JP27528699A 1999-09-28 1999-09-28 Magnetic resonance imaging system Expired - Fee Related JP4416221B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP27528699A JP4416221B2 (en) 1999-09-28 1999-09-28 Magnetic resonance imaging system
PCT/JP2000/006711 WO2001022879A1 (en) 1999-09-28 2000-09-28 Magnetic resonance image diagnostic apparatus and method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27528699A JP4416221B2 (en) 1999-09-28 1999-09-28 Magnetic resonance imaging system

Publications (3)

Publication Number Publication Date
JP2001095773A JP2001095773A (en) 2001-04-10
JP2001095773A5 true JP2001095773A5 (en) 2006-10-19
JP4416221B2 JP4416221B2 (en) 2010-02-17

Family

ID=17553320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27528699A Expired - Fee Related JP4416221B2 (en) 1999-09-28 1999-09-28 Magnetic resonance imaging system

Country Status (2)

Country Link
JP (1) JP4416221B2 (en)
WO (1) WO2001022879A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006028015A1 (en) 2004-09-06 2006-03-16 Hitachi Medical Corporation Magnetic resonance imaging apparatus and method
JP4718817B2 (en) * 2004-09-27 2011-07-06 株式会社東芝 Magnetic resonance imaging system
US7307419B2 (en) * 2004-12-20 2007-12-11 General Electric Company Method and system for spatial-spectral excitation by parallel RF transmission
WO2008132686A1 (en) * 2007-04-27 2008-11-06 Philips Intellectual Property & Standards Gmbh Quantification for mr parameters such as t1 or t2 in a sub-region of a subject
JP4995650B2 (en) * 2007-06-22 2012-08-08 株式会社日立メディコ Magnetic resonance imaging system
DE102008021736B3 (en) * 2008-04-30 2009-12-10 Bruker Biospin Mri Gmbh Method for determining the spatial distribution of magnetic resonance signals when using local location-encoding magnetic fields
JP5052676B2 (en) 2008-10-17 2012-10-17 株式会社日立メディコ Magnetic resonance imaging device
WO2011059017A1 (en) * 2009-11-12 2011-05-19 株式会社 日立メディコ Magnetic resonance imaging device and two-dimensional excitation adjustment method
DE102010038777B4 (en) * 2010-08-02 2012-12-13 Siemens Aktiengesellschaft Creation of MR images of a predetermined volume section within an examination object with continuous table displacement
DE102011004432A1 (en) * 2011-02-20 2012-08-23 Forschungszentrum Jülich GmbH Magnetic resonance method and magnetic resonance tomograph for carrying out the magnetic resonance method
US10209330B2 (en) 2011-03-22 2019-02-19 The Johns Hopkins University System and method of performing magnetic resonance spectroscopic imaging
US9791489B2 (en) 2011-03-22 2017-10-17 The Johns Hopkins University High dynamic range RF power monitor
JP6162131B2 (en) * 2012-09-20 2017-07-12 株式会社日立製作所 Magnetic resonance imaging apparatus and magnetic resonance imaging method
US10120049B2 (en) 2015-05-18 2018-11-06 The Johns Hopkins University System and method of obtaining spatially-encoded NMR parameters from arbitrarily-shaped compartments and linear algebraic modeling

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4812760A (en) * 1987-07-27 1989-03-14 General Electric Company Multi-dimensional selective NMR excitation with a single RF pulse
US5192909A (en) * 1991-01-07 1993-03-09 General Electric Company Spectroscopic localization using pinwheel nmr excitation pulses
JP3197590B2 (en) * 1991-12-10 2001-08-13 株式会社東芝 Magnetic resonance diagnostic equipment
DE19543079A1 (en) * 1995-11-18 1997-05-22 Philips Patentverwaltung Method for determining the spatial and / or spectral distribution of the nuclear magnetization

Similar Documents

Publication Publication Date Title
CN101264023B (en) Ultrasonic diagnosis device, image processing apparatus and image processing method
US8571288B2 (en) Image display apparatus and magnetic resonance imaging apparatus
JP2001095773A5 (en)
JP2000166892A5 (en)
JP2007068852A (en) Medical image display method and medical diagnostic imaging apparatus
JP4253526B2 (en) Magnetic resonance imaging system
JP4237974B2 (en) Nuclear spin tomography image processing and display device
JPH04364829A (en) Magnetic resonance image processing method and apparatus therefor
JPH038216B2 (en)
JP4334049B2 (en) MRI equipment
JP4368988B2 (en) MRI equipment
JP3350176B2 (en) Magnetic resonance imaging equipment
JP2004329669A (en) Mri device and mri photographing method
JP2006087626A5 (en)
JP5360757B2 (en) Magnetic resonance imaging and magnetic resonance imaging apparatus
JP3833765B2 (en) Magnetic resonance imaging system
JP3359930B2 (en) Magnetic resonance imaging
JP3341914B2 (en) MR apparatus and method of applying preparation pulse
JP2000005142A (en) Method and device for magnetic resonance imaging
JP2003204952A (en) Magnetic resonance imaging apparatus
JPH06269423A (en) Nuclear magnetic resonator
JPH0467861B2 (en)
JPH10179545A (en) Magnetic resonance imaging device
JP2002200056A (en) Method and apparatus for magnetic resonance imaging
Wiggins et al. Practical solutions to practical constraints: Making things work at ultra-high field